[Bug 1736632] Re: cal -h doesn't disable highlighting

[Paul Collins]

It seems this was done deliberately some time ago so that cal would be
100% drop-in compatible.  Then in 2020 highlighting was disabled in cal
entirely, upstream in Debian: https://bugs.debian.org/cgi-
bin/bugreport.cgi?bug=904839

Regarding the documentation, it's a little subtle, but the manual page
covers multiple commands, and in the SYNOPSIS section at the top, -h is
not shown as a valid option for cal, and valid for ncal, which seems to
match what each command supports.

** Bug watch added: Debian Bug tracker #904839
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=904839

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https://bugs.launchpad.net/bugs/1736632

Title:
  cal -h doesn't disable highlighting

Status in bsdmainutils package in Ubuntu:
  Confirmed

Bug description:
  % lsb_release -rd
  Description:	Ubuntu 17.10
  Release:	17.10

  % apt-cache policy bsdmainutils
  bsdmainutils:
    Installed: 9.0.12+nmu1ubuntu1
    Candidate: 9.0.12+nmu1ubuntu1

  The man page for `cal` says the following:

  The options are as follows:

        -h      Turns off highlighting of today.

  Expected output

  % cal -h
     December 2017
  Su Mo Tu We Th Fr Sa
                  1  2
   3  4  5  6  7  8  9
  10 11 12 13 14 15 16
  17 18 19 20 21 22 23
  24 25 26 27 28 29 30
  31

  Actual output

  % cal -h
  Usage: cal [general options] [-jy] [[month] year]
         cal [general options] [-j] [-m month] [year]
         ncal -C [general options] [-jy] [[month] year]
         ncal -C [general options] [-j] [-m month] [year]
         ncal [general options] [-bhJjpwySM] [-H yyyy-mm-dd] [-s country_code] [[month] year]
         ncal [general options] [-bhJeoSM] [year]
  General options: [-31] [-A months] [-B months] [-d yyyy-mm]

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: bsdmainutils 9.0.12+nmu1ubuntu1
  ProcVersionSignature: Ubuntu 4.13.0-17.20-generic 4.13.8
  Uname: Linux 4.13.0-17-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.7-0ubuntu3.5
  Architecture: amd64
  CurrentDesktop: LXDE
  Date: Tue Dec  5 18:13:32 2017
  InstallationDate: Installed on 2017-12-04 (1 days ago)
  InstallationMedia: Lubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
  SourcePackage: bsdmainutils
  UpgradeStatus: No upgrade log present (probably fresh install)

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